Earl's 900110ERL Econ-O-Fit Red Hose Clamp The Original Anodized Aluminum Hose Clamp Cover Dresses Up Any Installation Specially Designed Interior Grooving Machined From Aluminum Alloy Bagged Packaging; Size 10; ID 13/16 inch; Fits Perform-O-Flex/Auto-O-Flex Hose Size 10; Hose ID 9/16 inch; Oil Cooler Lines - Heater Hoses